MARK E DEVRIES PH.D.
NPI 1265476220
Clinical Neuropsychologist in Grand Rapids, MI
About Mark E Devries Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK E DEVRIES PH.D. (NPI 1265476220) is an individual clinical neuropsychologist in Grand Rapids, Michigan, licensed in Michigan (6301008596) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Grand Rapids, and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mark E Devries Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mark Devries reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49548
- Reassigned Medicare billing, Michigan enrollment
- 135 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Devries's NPI number?
The NPI number for Mark Devries is 1265476220. It was assigned to this individual provider in the NPPES registry on June 16, 2006.
Where is Mark Devries located?
Mark Devries practices at 300 68th St SE, Grand Rapids, MI 49548. The listed phone number is (616) 455-5000.
What is Mark Devries's specialty?
The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.
Is Mark Devries enrolled in Medicare?
Yes. Mark Devries is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mark Devries's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Devries reassigns Medicare benefits to Pine Rest Christian Mental Health Services (Grand Rapids, MI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Devries's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Devries accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 3 other insurers list Mark Devries as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Mark Devries was last updated on February 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mark E Devries, PH.D. · NPI 1265476220
Clinical Neuropsychologist provider in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since June 16, 2006.
## Identity
- **NPI:** 1265476220 (Entity type: Individual)
- **Enumerated:** June 16, 2006
- **Primary specialty:** Clinical Neuropsychologist · taxonomy 103G00000X
- **State license:** 6301008596 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 68TH ST SE, Grand Rapids, MI 49548-6927
- **Phone:** (616) 455-5000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Pine Rest Christian Mental Health Services (NPI 1386015683, Grand Rapids, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** February 23, 2026
- **Other identifiers:** Other 680D161890 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1265476220) · Data from the CMS NPPES public registry.